4 separate delay lines which can be configured for various delay types (Try out the preset programs as examples. Also see the included signal diagram diagram.jpg to understand the structure of this effect).

MIDI learn: Each control can be automated via MIDI controllers. The default assignment of MIDI controllers is documented in the pop-up hints. To assign a different controller right-click on a control then choose Learn from the pop-up menu and twiggle the hardware controller you want to assign. Alternatively choose Unlearn or Edit.. to assign a controller from a list.